Heater



Patented May d20, 1941 HEATER John M. Auiiero, Brooklyn, N. Y., assignorto E. A.

Laboratories, Inc., Brooklyn, N. Y., a corporation of New York fOriginal application June 15, 19.36,l Serial No. 85,250. Divided andthis application August 16, 1939, Serial No. 290,393 f (i Claims.

motorvehicle and in similar installations for the` purpose of warmingthe interior of the vehicle or any other corresponding space.

A further object is that of providing a heat exchange device which isprimarily intended for the purpose of heating but which may-undercertain circumstances-be employed to advantage in connection with thecooling of a designated space. When so employed in its preferredassociation it may Ibe coupled to the engine cooling system of thevehicle for the purpose of having heated fluid from the latter pass'through its body in order to warm air which in turn passes in heatexchange contact with such heater body.` W'hen so installed the unitwill function eciently and with freedom from all diiliculties and needsof replacement in order to deliver a maximum volume of heated air to anydesired point.

Another object is that of furnishing a device of this type which mayoperate to recirculate and condition air within a given space; tocondition fresh air and to' distribute the same,

motor vehicle with the heat exchange unit applied thereto;

Fig. 2 is a horizontal sectional view of one form of heater constructedin accordance with the' teachings of the present invention; and y Fig. 3is a vertical transversesection of the unit as shown in Figure 2.

Referring primarily to Fig. 1 in which the unit has been shown in itspreferred association, it will be seen that the numeral IU indicatesforward end of a vehicle provided with a windshield II, The heatexchange unit has been generally indicated at I4 and as shown atube .I5may extend from the ventilator 'I2 to the unit I4, while tubes I6 landI1 may be connected to unit I4 and extend respectively the vehicle andto a point adjacent the windshield II of the same. A

Moreover, and in aocordance with technique well understood by thoseskilled in the art, the

' heater is connected by tubes (not shown) to for Figs. 2 and and/orelse to cause a conditioning and recirculation of a mixture of bothfresh and recirculated air. Moreover, by means of this invention a."

structure is furnished which will result -'in an extremely eilcient'distribution of air not alone suitable -structureby means of whichsecuredto the dash I3 example the cooling system of the motor (also notshown) within the" forward portion I0 of the vehicle. Consequentlyheated iiuid from such motor will circulate through the heater and berecirculated back to the cooling system; it bel ing understood thatvarious types of thermostatic valves, iiuid cut-offs, etc. may beinterposed in the circuit.`

'Ihe heater per se may I9 or any other it may be of the vehicle.Moreover the tubes through which the heater is connectof metal andprovided with bolts ed to the'circulating system have beenrespecgenerally to the interior of a space, but also to specificlocations such as points adjacent the Windshield of the vehicle, forexample, the rear compartment of the same, etc.

Still another object is that of furnishing a device of this type whichwill embody relatively few parts, each individually rugged and simple inconstruction, these parts being capable of ready assemblage, to furnisha unit of this type which may be-simply`installed 'and which maymoverover be sold at a nominal figure.

With these and other objects in mind. reference is had to the attachedsheet ofy drawings :ill

illustrating one practical embodiment ofthe invention, and in which: v Y

Fig. 1 is a somewhat diagrammatic,V partly sectional side View of theforward portion of a tively indicated at,20 and 2| and these tubes arecoupledY to the headers of cores 22 and 23. The cores may be arranged inserieswith each other. by being coupled through an elbow member 24.Obviously any other suitable form of connection may be employed andlikewise the core elements themselves may include any ldesiredconstruction presenting interstices through which air may ilow.

Arranged within casing I8 is an air impelling structure which mayinclude, as shown, a mo,

tor 25 connected through wires 26 to a control -bv means of whichsuitable operation of the motor may be effected. Coupled to the motorshaft 21 is an air impeller structure ywhich may include a pair ofradial blade type fails 28 or 29 arranged'so that one absorbs the thrustof the other.

the y a cowl ventilator I2 and a dash I3.-

to the rear compartment of` include, as shown in.` 3, a casing IBconveniently formed core 23 as wellas. through an opening formed in thecasing I 8.J This opening may be guarded by deiiectors or louversl 3|and. as will be observed especially in Fig. 3, the air impellingFinally. it will be understood that by means l of the presentstructur'e, au operator is able to fully control the operation of theunit 'under varying climatic conditions. In' other words,

5 with no air flow-ing through tube I5, all' air is structure togetherwiththe motor maybe supported within thecasing by brackets or straps 32.s

Beyond core 23 the casing may mount a f1ting which can include branches33 and 34', the former being for example coupled to tube 16, while thelatter may be connected to tube I1. Additionally extending through thecasing wall is an intake 35 which may be coupled to tube l5 todistribute to the interior of the casing any desired quantity oi freshair. Moreover, as :will -be understood various means may be associatedwith the several parts in order that the quantity of airowingthrough-the various tubes and/or discharged through the severalopenings or fittings, may be, regulated. Such. means has not been shownin that the installation of the same will be obvious and may takenumerous diii'erent forms.

Finally, it will benoted that the parts of the casing adjacent Vtheopening 30 may be modiiied and embody a conguration such that theyprovide in eecta shroud plate structure adjacent the fan 23. A shroudplate 36 is disposed axijacent fan 29 in orderto assure of a lproperflow of lair throughthe tting. It will be seen that the shroud plate361m conjunction with'casing recirculated and distributed as desired.With tube I5 opened partially; the recirculated air is diluted byacertain amount offfresh air, while if a greater volume of air ispermitted to flow through branch 35, the recirculated air is furtherdiluted. Also, as is apparent, if no iiuid flow occurs through pipes and2l and a flow of air is permitted through tube I5, fresh air willbe'distributed within the interior of the 4 15 vehicle.

4'rims among others the objects of the invention as afore described arepachieved. Cbviously,

numerous changes in construction and rearrangement ,of the parts mightbe resorted to 20 without departing fromth'e spirit of the invenf tionas dened by the claims.'

I claim:

formed with an inlet opening and a plurality of '25 outlet' openings,aright angle core positioned within said casing in the path of saidinlet opening and one of said outlet openings, means cou- .pling saidcore to the water cooling system oi' said automobile, and air impellingmeans carried by said casing and designed to draw air into said I8 ineiect provides a housing for the air discharged by impeller 29 andwithin plenum eifect may occur.

Thus, it Vwill be understood that as afore brought out, air is drawnthrough that opening of the casing adjacent which core 221s disposed andthisair is thus conditioned by the core. 'I'he air ilow results ofcourse incident to the operation of the air impelling structure. One ofthe impellers simply discharges the airthrough the outlet opening 30 ofthe casing, while'the other of the same causes a radial or tangentialnow of air with respect to the casing and in the form of columns throughthe fitting embracing the branches 33 and 34. In such flow and incidentto the provision of core 23, the airis further conditloned. Thusseparate impelling means are furnished for diiferent purposes, i. e.,generally casing through said inlet opening across one portion of saidcore and to force said air out through the voutlet openings in saidcasing.

2. An automobile heater including a casing formed with an inlet openingand a plurality of outlet openings, a right angle core, positionedwithin said casing in the path of said inlet opening and one of` saidoutlet openings, means coupling said core tothe water cooling system ofsaid 40 automobile, airsimpelling means carried by said casing anddesigned to draw air into said casing through said inlet opening acrossone portion of said core and to force said air out through the outletopenings in said casing, and a deilector iittingsassociated .with saidcasing adjacent warming thelinterior of the space and directing eil'ectform one continuous air conditioning unit.

Through one area of this unit air is sucked by a person `of theimpelling means and through another area of the unit a portion of thearea is blown by the `lmpelling means. In connection` the outlet'opening across which one' portion of' said core extends, said fittingserving to divide the air stream flowing from said outlet opening into aplurality of separate paths.

3. An automobile heater including a casing formed with an inlet openingand a plurality of outlet openings, a right angle core positioned withinsaid casing in the path of. said inlet opening and one of said, outletopenings, meanscou- '55 `plingsaid core tothe water cooling system ofsaid with the latter ilow it will be understood that,

a certain amount of the air blown through the core need not necessarilyhave been vpreviously sucked through the core. This is because the inlet3571s generally shaped to assure a ilow oi' air towards the impeller 29.However, with the valve means or dampers (not shown) associated eitherwith the branches 33 and "lor the tubes extended therefrom closed, itwill be apparent automobile. air'impelling means carried big` saidcasing and designed to draw air into said 'casing through said inletopening across one portion of said core and to force said air outthrough 6o the outlet openings'in said casing, and a delicotorv ttingassociated with said casing adjacent the outlet opening across which oneportion of said core extends, said fitting serving to divide the airstream owing from said outlet opening intoa plurality of separate paths.

that no air will be discharged through the core sectionl 23.. Under suchcircumstances. all air drawn through core section, 22 or fitting 35will, oi' course, be distributed through opening 35.

4. An automobile. heater including va casing' formed with an inletopening and a plurality ofoutlet openings, `a right angle. corepositioned w'ithin'said casing in the path of said inlet opening and onevof said outlet openings, means coupling said core to the water coolingsystem 'of said automobile, and'air impelling means comf prising a motorhaving adouble ended shaft, fans associated with each end o f saidshaft, said motor and fans being so mounted within said casing that oneof said fans is positioned adjacent that portion of said radiator corethat extensds across one of said outlet openings, and the other fanbeing positioned adjacent another of-said outlet openings so that assaid fans are rotated, air is drawn into said casing through said inletopening and thereafter expelled through said outlet openings.

5. A heater adapted to be disposed within the body of an automobile andincluding a casing formed with an air inlet and with a pairof air outletopenings, a heat exchange unit disposed across said air inlet openingand whereby all air entering said heater from the body of the automobilewill pass in heat transfer contact with said unit and as it enters saidcasing, said heat exchange unit also extending in the path of the airbefore it discharges through one of said outlet openings, the otheroutlet opening being unobstructed, motor driven air impelling meansdisposed with said casing comprising a plurality of impellers, saidimpelling means drawing air through said inlet opening, one of saidimpellers discharging air through the outlet opening of the casing inadvance of which said heat'exchange unit is disposed and the otherimpeller discharge ing air from the interior of the casing directlythrough the second outlet opening of the same.

6. A heater adapted to be disposed within the body of an automobile andincluding a casing formed with an air inlet and with a pair of airoutlet openings, a heat exchange unit disposed across said' air inletopening, whereby all air entering said heater from the body of theautomobile will pass in heat transfer contact with said unit and as itenters said casing, said' heat exchange unit also extending in the pathof the air before it discharges through one of said outlet openings, theother outlet opening being unobstructed, motor driven air impellingmeans disposed with said casing comprising a plurality of impellers,said impelling means drawing air through said inlet opening, one ofsai-d impellers discharging air through the outlet opening of the casingin advance of which, said heat exchange unit is disposed, the otherimpeller discharging air from the interior. of the casing directlythrough the second outlet opening of the same and means providing apassage for the introduc tion of fresh air into the interior of saidcasing,

said air impelling means drawing air through said passage.

JOHN M. AUFIERO.

